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Ok, I was driving along and all of a sudden the bike looses power and starts to sound like a lawn mower and then dies. Got it home and cyclinders 1-4 not firing (pipes cold). After investigating I found that there was no spark from the left ignition coil that fires 1-4 so I put a new coil on but still no spark. I then checked the new coil with the wires from 2-3 coil and it works. I'm getting 11.5 volts from the o/w wire and continuity from the other wire back to the ecu and now I don't know what to check next. So, to recap, coil is fine and getting power from the o/w wire and other wire gets continuity back to ecu but still no spark.. What next?

Ok, I was driving along and all of a sudden the bike looses power and starts to sound like a lawn mower and then dies. Got it home and cyclinders 1-4 not firing (pipes cold). After investigating I found that there was no spark from the left ignition coil that fires 1-4 so I put a new coil on but still no spark. I then checked the new coil with the wires from 2-3 coil and it works. I'm getting 11.5 volts from the o/w wire and continuity from the other wire back to the ecu and now I don't know what to check next. So, to recap, coil is fine and getting power from the o/w wire and other wire gets continuity back to ecu but still no spark.. What next?

Cheers, Steven (gsx600f 1989)

The ground for those coils is through the bolts and into the frame. I'd suggest cleaning the crap out of all those areas and see if that helps.

Ok, I was driving along and all of a sudden the bike looses power and starts to sound like a lawn mower and then dies. Got it home and cyclinders 1-4 not firing (pipes cold). After investigating I found that there was no spark from the left ignition coil that fires 1-4 so I put a new coil on but still no spark. I then checked the new coil with the wires from 2-3 coil and it works. I'm getting 11.5 volts from the o/w wire and continuity from the other wire back to the ecu and now I don't know what to check next. So, to recap, coil is fine and getting power from the o/w wire and other wire gets continuity back to ecu but still no spark.. What next?

Cheers, Steven (gsx600f 1989)

Your most likely looking at a bad CDI or an issue with a wire between. The only economical test is to swap the cdi with a known good one. If you can rule out the CDI, then it's wiring between the coil and cdi.

Your most likely looking at a bad CDI or an issue with a wire between. The only economical test is to swap the cdi with a known good one. If you can rule out the CDI, then it's wiring between the coil and cdi.

Krey

I was hoping that this wasn't the case.. Krey, could these symptoms have anything to do with the ignition pickup/signal generator?